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Evaluation of the Performance Test Load through the Estimation of Vertical Loads on Vibration-Proof Fastening Systems

방진체결장치에 작용하는 수직하중 평가를 통한 성능시험하중 평가

  • Yang, Sin Chu (High-speed Railroad System Research Center, Korea Railroad Research Institute)
  • Received : 2016.08.18
  • Accepted : 2016.12.05
  • Published : 2016.12.31

Abstract

In this study, regulation of the performance test load of a vibration-proof fastening system used in urban railways was established through evaluation of the loads that it bears in the field. In order to investigate the range of the dynamic stiffness of the vibration-proof fastening system, dynamic stiffness tests were carried out for three types of vibration-proof fastening system that can be domestically supplied. Train and track interaction analyses in the frequency domain were carried out to evaluate the dynamic wheel loads. The track irregularity, which is a very important input factor in train and track interaction analysis, was considered as a PSD (Power Spectral Density) function, which was derived based on the measured data. The loads on the vibration-proof rail fastening system were evaluated considering various operating conditions in the urban railway. Regulation of the performance test load of the vibration-proof rail fastening system was established based on the evaluated loads.

Acknowledgement

Grant : 레일체결장치 시험기준 정립 및 유지관리 합리화 방안 연구

Supported by : 한국철도시설공단

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